AQM1264PA Datasheet, PDF (5/17 Pages) AZ Displays – SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY

AQM1264PA-NLW-BBW (AZ DISPLAYS) GRAPHIC MODULE VER2.0
3.2 The Characteristics Of Backlight
3.2.1 Electrical-Optical Characteristics Of LED Backlight (Ta=25ºC)
Item
Forward Voltage⁽¹⁾
Reverse Voltage
Luminance⁽²⁾
Uniformity⁽³⁾
Peak wave length
Chroma coordinate
Lifetime⁽⁴⁾
Symbol
Vf
Vr
Lv
Δ
λp
x
y
-
Condition
If=45mA
-
If=45mA
(Lvmin/Lvmax)%
-
If=45mA
If=45mA
If=45mA
Min
2.9
--
200
70%
--
0.26
0.26
-
Typ
Max
3.1
3.3
--
5
240
--
--
--
--
--
--
0.32
--
0.32
20000
-
Unit
V
V
cd/㎡
-
nm
um
um
Hours
NOTE:
(1) Forward voltage means voltage applied directly to the LED
(2)The luminance is the average value of 5 points,The measurement instrument is BM-7 luminance
colorimeter.The diameter of aperture is Φ5mm
(3) Luminance means the backlight brightness without LCD.
(4) Backlight lifetime means luminance value larger than half of the original after 20000 hours’ continuous working.
3.2.2 Backlight Control Circuit FOR LCM（1x3=3 pcs LED）
Vin=6.0V
If=30mA(TYPE.)
Vf
0V
3.2.3 LED Characteristics Curves（for single led）
1.Forward current VS.Ambient Temperature
25
20
15
10
5
0
-30 0 25 50 80 100
Ambient Temperature
2.Forward current VS Forward Voltage
30
25
20
15
10
5
0
2345
Forward Voltage
AZ DISPLAYS
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